It seems to be here[1], just to the left of the pin. Bing seems to have the only aerial images that have a good resolution of that area. You can faintly see on that side of the hill (the eastern face) some lines that look like the cat.

[1] https://www.bing.com/maps?osid=5199b705-dfdd-4763-a3ed-26e8e...

I don't know the exact coordinates of the newly found cat but Nazca lines are around here: -14.7192698,-75.1298623

Supposedly the cat was spotted from the nearby outlook/outpost, so look around what you could spot from "Mirador De Las Líneas De Nazca"

See https://news.ycombinator.com/item?id=24909094 in this very discussion.